Decided on 1.5hp model aslong as its super cold and save energy. Possible quiet would be nice.Wind must be strong too.

Its for a room the size quite small suitalbe for 1hp model but now 1hp model really not cold at all. Change a few models the latest model lilke no horsepower really not cold enough.  Even the wind power also cannot feel.    

Dont need special feature etc just a normal inverter aircon that super cold and enough wind blowing and power saving.

Wiring all will be redo so 3 wire 4 wire or 5 wire dont matter much.

Yes the room super hot during daytime or night time most times when the temperature rises if prolong no heavy rain for days or weeks.

Aircon daily usage most times would be 24 hours sometimes for weeks.

Recent temperature draw me nuts. Cant even have a good sleep.    

The first 1 hp aircon was cold and strong but the airocn repairman ruined it on purpose. The next airon was cold and ok but installer ruined it dont ask the sore part. totally pissed off. The airon was beyond hope after using a year or 2. Basically got shortcircuited even piping and wiring also got problem.

Current model 1 hp inverter is 5 star but just wasnt cold enough even the wind blow also cannot feel much.

The calculation base on size etc etc dont fit my room condition. Its a hot bedroom got window.